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Spark Plug Indexing Washers

Spark Plug Indexing Washers




Have you ever noticed when removing your spark plugs that one side of the tip is burning lean while the other side appears to be rich. Here's whytake a look at your transfer ports, they are all directed to pack the charge on the intake side of your cylinder. When you index your plugs you are aligning the open end of your electrode on your spark plug toward the intake port of your cylinder by using certain thicknesses of washers to achieve this. Gain performance, fuel mileage and plug life. Kit contains sets of 4 different thickness washers and complete instructions. Available for 2 and 3 cylinder - make your choice below.